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89d123106a
This adds the following commits from upstream: 756ffc4f52f6 Build pylibfdt as part of the normal build process 8cb3896358e9 Adjust libfdt.h to work with swig b40aa8359aff Mention pylibfdt in the documentation 12cfb740cc76 Add tests for pylibfdt 50f250701631 Add an initial Python library for libfdt cdbb2b6c7a3a checks: Warn on node name unit-addresses with '0x' or leading 0s 4c15d5da17cc checks: Add bus checks for simple-bus buses 33c3985226d3 checks: Add bus checks for PCI buses 558cd81bdd43 dtc: Bump version to v1.4.4 c17a811c62eb fdtput: Remove star from value_len documentation 194d5caaefcb fdtget: Use @return to document the return value d922ecdd017b tests: Make realloc_fdt() really allocate *fdt 921cc17fec29 libfdt: overlay: Check the value of the right variable 9ffdf60bf463 dtc: Simplify asm_emit_string() implementation 881012e44386 libfdt: Change names of sparse helper macros bad5b28049e5 Fix assorted sparse warnings 672ac09ea04d Clean up gcc attributes 49300f2ade6a dtc: Don't abuse struct fdt_reserve_entry fa8bc7f928ac dtc: Bump version to v1.4.3 34a9886a177f Add printf format attributes f72508e2b6ca Correct some broken printf() like format mismatches 397d5ef0203c libfdt: Add fdt_setprop_empty() 69a1bd6ad3f9 libfdt: Remove undefined behaviour setting empty properties acd1b534a592 Print output filename as part of warning messages 120775eb1cf3 dtc: Use streq() in preference to strcmp() 852e9ecbe197 checks: Add Warning for stricter node name character checking ef0e8f061534 checks: Add Warning for stricter property name character checking 00d7bb1f4b0e dtc: pos parameter to srcpos_string() can't be NULL 95d57726bca4 livetree.c: Fix memory leak 3b9c97093d6e dtc: Fix NULL pointer use in dtlabel + dtref case 43eb551426ea manual: Fix typo it -> in 4baf15f7f13f Makefile: Add tags rule Signed-off-by: Rob Herring <robh@kernel.org>
303 lines
6.8 KiB
C
303 lines
6.8 KiB
C
/*
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* Copyright 2007 Jon Loeliger, Freescale Semiconductor, Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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* USA
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*/
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#define _GNU_SOURCE
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#include <stdio.h>
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#include "dtc.h"
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#include "srcpos.h"
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/* A node in our list of directories to search for source/include files */
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struct search_path {
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struct search_path *next; /* next node in list, NULL for end */
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const char *dirname; /* name of directory to search */
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};
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/* This is the list of directories that we search for source files */
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static struct search_path *search_path_head, **search_path_tail;
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static char *get_dirname(const char *path)
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{
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const char *slash = strrchr(path, '/');
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if (slash) {
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int len = slash - path;
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char *dir = xmalloc(len + 1);
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memcpy(dir, path, len);
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dir[len] = '\0';
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return dir;
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}
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return NULL;
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}
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FILE *depfile; /* = NULL */
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struct srcfile_state *current_srcfile; /* = NULL */
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/* Detect infinite include recursion. */
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#define MAX_SRCFILE_DEPTH (100)
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static int srcfile_depth; /* = 0 */
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/**
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* Try to open a file in a given directory.
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*
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* If the filename is an absolute path, then dirname is ignored. If it is a
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* relative path, then we look in that directory for the file.
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*
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* @param dirname Directory to look in, or NULL for none
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* @param fname Filename to look for
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* @param fp Set to NULL if file did not open
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* @return allocated filename on success (caller must free), NULL on failure
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*/
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static char *try_open(const char *dirname, const char *fname, FILE **fp)
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{
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char *fullname;
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if (!dirname || fname[0] == '/')
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fullname = xstrdup(fname);
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else
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fullname = join_path(dirname, fname);
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*fp = fopen(fullname, "rb");
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if (!*fp) {
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free(fullname);
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fullname = NULL;
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}
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return fullname;
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}
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/**
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* Open a file for read access
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*
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* If it is a relative filename, we search the full search path for it.
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*
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* @param fname Filename to open
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* @param fp Returns pointer to opened FILE, or NULL on failure
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* @return pointer to allocated filename, which caller must free
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*/
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static char *fopen_any_on_path(const char *fname, FILE **fp)
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{
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const char *cur_dir = NULL;
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struct search_path *node;
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char *fullname;
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/* Try current directory first */
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assert(fp);
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if (current_srcfile)
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cur_dir = current_srcfile->dir;
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fullname = try_open(cur_dir, fname, fp);
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/* Failing that, try each search path in turn */
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for (node = search_path_head; !*fp && node; node = node->next)
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fullname = try_open(node->dirname, fname, fp);
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return fullname;
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}
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FILE *srcfile_relative_open(const char *fname, char **fullnamep)
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{
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FILE *f;
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char *fullname;
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if (streq(fname, "-")) {
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f = stdin;
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fullname = xstrdup("<stdin>");
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} else {
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fullname = fopen_any_on_path(fname, &f);
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if (!f)
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die("Couldn't open \"%s\": %s\n", fname,
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strerror(errno));
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}
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if (depfile)
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fprintf(depfile, " %s", fullname);
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if (fullnamep)
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*fullnamep = fullname;
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else
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free(fullname);
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return f;
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}
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void srcfile_push(const char *fname)
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{
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struct srcfile_state *srcfile;
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if (srcfile_depth++ >= MAX_SRCFILE_DEPTH)
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die("Includes nested too deeply");
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srcfile = xmalloc(sizeof(*srcfile));
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srcfile->f = srcfile_relative_open(fname, &srcfile->name);
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srcfile->dir = get_dirname(srcfile->name);
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srcfile->prev = current_srcfile;
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srcfile->lineno = 1;
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srcfile->colno = 1;
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current_srcfile = srcfile;
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}
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bool srcfile_pop(void)
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{
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struct srcfile_state *srcfile = current_srcfile;
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assert(srcfile);
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current_srcfile = srcfile->prev;
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if (fclose(srcfile->f))
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die("Error closing \"%s\": %s\n", srcfile->name,
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strerror(errno));
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/* FIXME: We allow the srcfile_state structure to leak,
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* because it could still be referenced from a location
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* variable being carried through the parser somewhere. To
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* fix this we could either allocate all the files from a
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* table, or use a pool allocator. */
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return current_srcfile ? true : false;
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}
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void srcfile_add_search_path(const char *dirname)
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{
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struct search_path *node;
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/* Create the node */
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node = xmalloc(sizeof(*node));
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node->next = NULL;
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node->dirname = xstrdup(dirname);
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/* Add to the end of our list */
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if (search_path_tail)
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*search_path_tail = node;
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else
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search_path_head = node;
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search_path_tail = &node->next;
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}
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/*
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* The empty source position.
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*/
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struct srcpos srcpos_empty = {
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.first_line = 0,
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.first_column = 0,
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.last_line = 0,
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.last_column = 0,
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.file = NULL,
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};
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#define TAB_SIZE 8
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void srcpos_update(struct srcpos *pos, const char *text, int len)
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{
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int i;
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pos->file = current_srcfile;
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pos->first_line = current_srcfile->lineno;
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pos->first_column = current_srcfile->colno;
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for (i = 0; i < len; i++)
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if (text[i] == '\n') {
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current_srcfile->lineno++;
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current_srcfile->colno = 1;
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} else if (text[i] == '\t') {
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current_srcfile->colno =
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ALIGN(current_srcfile->colno, TAB_SIZE);
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} else {
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current_srcfile->colno++;
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}
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pos->last_line = current_srcfile->lineno;
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pos->last_column = current_srcfile->colno;
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}
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struct srcpos *
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srcpos_copy(struct srcpos *pos)
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{
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struct srcpos *pos_new;
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pos_new = xmalloc(sizeof(struct srcpos));
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memcpy(pos_new, pos, sizeof(struct srcpos));
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return pos_new;
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}
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char *
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srcpos_string(struct srcpos *pos)
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{
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const char *fname = "<no-file>";
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char *pos_str;
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if (pos->file && pos->file->name)
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fname = pos->file->name;
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if (pos->first_line != pos->last_line)
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xasprintf(&pos_str, "%s:%d.%d-%d.%d", fname,
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pos->first_line, pos->first_column,
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pos->last_line, pos->last_column);
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else if (pos->first_column != pos->last_column)
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xasprintf(&pos_str, "%s:%d.%d-%d", fname,
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pos->first_line, pos->first_column,
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pos->last_column);
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else
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xasprintf(&pos_str, "%s:%d.%d", fname,
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pos->first_line, pos->first_column);
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return pos_str;
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}
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void srcpos_verror(struct srcpos *pos, const char *prefix,
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const char *fmt, va_list va)
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{
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char *srcstr;
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srcstr = srcpos_string(pos);
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fprintf(stderr, "%s: %s ", prefix, srcstr);
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vfprintf(stderr, fmt, va);
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fprintf(stderr, "\n");
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free(srcstr);
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}
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void srcpos_error(struct srcpos *pos, const char *prefix,
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const char *fmt, ...)
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{
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va_list va;
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va_start(va, fmt);
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srcpos_verror(pos, prefix, fmt, va);
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va_end(va);
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}
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void srcpos_set_line(char *f, int l)
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{
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current_srcfile->name = f;
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current_srcfile->lineno = l;
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}
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